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Table 2 Anthropometry and body composition. In bold are significant results (p < 0.05)

From: Associations between hydration status, body composition, sociodemographic and lifestyle factors in the general population: a cross-sectional study

Variable Women
Mean (SD)
Men
Mean (SD)
*Difference
Height (m) 1.65 (0.06) 1.77 (0.07) p < 0.001
BM (kg) 62.9 (8.7) 79.6 (11.5) p < 0.001
BMI (kg/m2) Freq Percent Freq Percent P < 0.001
  < 18.5 5 4.4 1 0.8  
 18.5—< 25 85 75.2 62 50.4  
 25—< 30 18 15.9 47 38.2  
  ≥ 30 5 4.4 13 10.6  
SMI (kg/m2) 6.93 (0.8) 9.23 (1.2) p < 0.001
FFMI (kg/m2) 15.6 (1.3) 19.4 (1.9) p < 0.001
FMI (kg/m2) 7.4 (2.6) 6.1 (2.5) p < 0.001
VFM (l) 0.97 (0.7) 2.5 (1.6) p < 0.001
TBW/BM 0.51 (0.05) 0.56 (0.05) p < 0.001
TBW/FFM 0.75 (0.01) 0.74 (0.01) p < 0.001
ECW/TBW 0.46 (0.03) 0.43 (0.02) p < 0.001
ICW/TBW 0.54 (0.03) 0.57 (0.02) p < 0.001
ECW/ICW 0.85 (0.09) 0.76 (0.08) p < 0.001
ECW/FFM 0.34 (0.02) 0.32 (0.02) p < 0.001
ICW/FFM 0.41 (0.02) 0.42 (0.02) p < 0.001
R (Ω) 661.4 (57.6) 532.7 (56.8) p < 0.001
R/H (Ω/m) 400.8 (36.3) 301.4 (32.6) p < 0.001
Xc (Ω) 56.7 (7.9) 50.3 (9.0) p < 0.001
Xc/H (Ω/m) 34.3 (4.8) 28.5 (5.2) p < 0.001
PA (°) 4.9 (0.6) 5.4 (0.9) p < 0.001
  1. *We used the Kruskal–Wallis equality-of-populations rank test to assess differences between BMI categories, two sample t-tests to assess differences between heights and phase angles, and the Wilcoxon-Mann–Whitney test to assess differences between the means of the other variables